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       句式就是语句的结构方式，也就是语句的款式或格局。不同的思维内容要用不同的句式来表达;而同一思维内容也可以用不同的句式来表达。句式不同，表达作用也就不同。只有句式多样化，文章才会生动有趣，充满活力。可是，在实践写作中，初学写作的学生往往一篇文章都是千篇一律的简略句，文章单调庸俗，毫无生气。笔者以为，恰当地运用某些办法或手段有助于实践表达形式的多样化，增强表达作用。兹将常用办法简略介绍如下。

　　一、改动语句最初

　　许多学生在写作中倾向于用与人有联系的词性，用名词和代词作为语句的最初，如 People，We，I，He，They，She等。但这种最初见多了，难免让人厌恶。试比较：

　　A.People throughout the country have greatly demanded all kinds of nutritious food.

　　B.There is a great demand across the country for all kinds of nutritious food.

　　榜首句改用非人称名词作为主语最初，第二句则用there +be句型最初。这样既改动了主语+谓语+宾语单调句型，又把想着重的意思杰出出来。实践上，为了把文章写得生动活泼，除了用主语最初外，还可以用语句的其他成分最初。

　　1.用副词最初

　　Too often，students stray into the habit of cheating on tests.

　　2.用同位语最初

　　Air，water and oxygen，everything that is necessary for life.

　　3.用状语最初

　　Dark and empty，the house looked very different from the way I remembered it.

　　4.用表语最初

　　Equally essential to the highest success in learning a language are intense interest plus persistent effort.

　　5.用宾语最初

　　My advice you would not listen to;my helps you laughed at.Now you will have what you asked for.

　　6.以短语修饰语最初

　　1)以介词短语最初

　　To me the news was very interesting，but to my wife very boring.

　　2)以分词短语最初

　　Disturbed by the discord of American life in recent decades，Menchester took flight for the pacific islands.

　　3)以不定式短语最初

　　To pass the exam，you should work very hard.

       二、巧用连接词

　　有的学生在作文中运用过多简略句，成了简略句堆砌;有的写复杂句时，动辄用so， and，then，but，or，however，yet等非但达不到丰厚表达方式的意图，反而使语句结构松懈、板滞。为了防止这种现象，可以通过运用连接词，尤其是一些表明从属联系的连接词，如 who，which，that，because，since，although，after，as，before，when，whenever，if，unless，as if等，不仅可以丰厚句型，而且还可以把思维表达得更清楚，含义更连接。例如：

　　Natural resources are very limited.They will be exhausted in the near future.It is not true.But it becomes a major concern around the world.This is a widely accepted fact.

　　这段文字用简略句表达，它们之间内在的逻辑联系含糊不清，意思四分五裂。假如运用连接词，将单句与其前后兼并，构成主次联系，就把一个比较复杂的内容和联系表达得层次清楚、结构严谨。例如：

　　It is a widely accepted fact that there is a major concern around the world for the exhaustion of limited natural resources in the near future，though it is unlikely to be true.

　　再如：

　　The Mississippi River is one of the longest rivers in the world，and in spring time it often overflows its banks，and the lives of many people are endangered.

　　此句用and把三个分句一向究竟，既庸俗又可笑。假如运用了联系代词which，语义就会更连接，言语也会更流通：

　　The Mississippi River，which is one of the longest rivers in the world，often overflows its banks in the spring time，endangering the lives of many people.